Adapterops Frieser, 2010

Trýzna, Miloš & Baňař, Petr, 2012, New species of Adapterops (Coleoptera: Anthribidae) from east Madagascar with a key to species and notes on sexual dimorphism and biodiversity of the family, Acta Entomologica Musei Nationalis Pragae 52 (2), pp. 475-485 : 476

Adapterops Frieser, 2010

Type species. Adapterops nasalis Frieser, 2010: 18 , by original designation.

Diagnosis. Head small, eyes large, situated laterally, conspicuously convex, separated from each other, not emarginate. Dorsal pronotal transverse carina basal, sinuate laterally, most lateral part curved posteriorly. Postero-lateral edges of pronotum somewhat protruding posteriorly in lateral view, more or less acutangulate, lateral carina absent, therefore sides of pronotum rounded.

The genus Adapterops is similar to the genus Pilitrogus Frieser, 1980 (both classified in the tribe Araecerini ) which is hitherto known from three species from Réunion Island ( FRIESER 1980). From the latter, Adapterops can be distinguished by antennal scrobe large, carinate on dorsal margin, conspicuously reaching towards middle of rostrum; rostrum with lateral margins strongly sinuate at antennal scrobes, strongly narrowed between antennal scrobes, minimum distance between scrobes about half of the eye width ( Figs. 8–12 ).

Figures

Figs. 8–12. Head of Adapterops species, dorsal view, vestiture omitted. 8–9 – A. festivus Frieser, 2010: 8 – male, 9 – female; 10 – A. hankae Trýzna sp. nov., female holotype; 11–12 – A. nasalis Frieser, 2010: 11 – male, 12 – female paratype. Scale bar = 0.5 mm.